using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace CKY.AgentPlatform.Application.Mcp
{
    /// <summary>
    /// MCP客户端管理器接口
    /// </summary>
    public interface IMcpClientManager
    {
        /// <summary>
        /// 测试连接
        /// </summary>
        Task<bool> TestConnectionAsync(string serverUrl);

        /// <summary>
        /// 获取服务器工具列表
        /// </summary>
        Task<List<McpToolInfo>> GetToolsAsync(string serverUrl);

        /// <summary>
        /// 执行工具
        /// </summary>
        Task<object> ExecuteToolAsync(string serverUrl, string toolName, Dictionary<string, object> parameters);

        /// <summary>
        /// 获取服务器资源列表
        /// </summary>
        Task<List<McpResourceInfo>> GetResourcesAsync(string serverUrl);
    }

    /// <summary>
    /// MCP客户端管理器实现
    /// </summary>
    public class McpClientManager : IMcpClientManager
    {
        public Task<bool> TestConnectionAsync(string serverUrl)
        {
            // TODO: 实现MCP连接测试
            return Task.FromResult(true);
        }

        public Task<List<McpToolInfo>> GetToolsAsync(string serverUrl)
        {
            // TODO: 实现MCP工具获取
            return Task.FromResult(new List<McpToolInfo>());
        }

        public Task<object> ExecuteToolAsync(string serverUrl, string toolName, Dictionary<string, object> parameters)
        {
            // TODO: 实现MCP工具执行
            return Task.FromResult(new object());
        }

        public Task<List<McpResourceInfo>> GetResourcesAsync(string serverUrl)
        {
            // TODO: 实现MCP资源获取
            return Task.FromResult(new List<McpResourceInfo>());
        }

        /// <summary>
        /// 获取所有可用资源
        /// </summary>
        /// <returns>所有可用资源列表</returns>
        public Task<List<McpResourceInfo>> GetAllAvailableResourcesAsync()
        {
            // TODO: 实现获取所有可用资源
            return Task.FromResult(new List<McpResourceInfo>());
        }
    }

    /// <summary>
    /// MCP工具信息
    /// </summary>
    public class McpToolInfo
    {
        public string Name { get; set; }
        public string Description { get; set; }
        public Dictionary<string, object> Schema { get; set; }
        public Dictionary<string, object> InputSchema { get; set; }
        public Dictionary<string, object> Configuration { get; set; }
    }

    /// <summary>
    /// MCP资源信息
    /// </summary>
    public class McpResourceInfo
    {
        public string Uri { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
        public string MimeType { get; set; }
    }

    /// <summary>
    /// MCP工具执行输入
    /// </summary>
    public class McpToolExecutionInput
    {
        public string ToolName { get; set; }
        public Dictionary<string, object> Parameters { get; set; }
        public int TimeoutSeconds { get; set; } = 30;
    }

    /// <summary>
    /// MCP工具执行结果
    /// </summary>
    public class McpToolExecutionResult
    {
        public object Result { get; set; }
        public bool IsSuccess { get; set; }
        public string ErrorMessage { get; set; }
        public bool Success { get; set; }
        public string ToolName { get; set; }
        public string ToolId { get; set; }
        public object Data { get; set; }
    }

    /// <summary>
    /// MCP客户端状态
    /// </summary>
    public class McpClientStatus
    {
        public string ServerUrl { get; set; }
        public bool IsConnected { get; set; }
        public string Status { get; set; }
        public DateTime LastConnected { get; set; }
        public string ErrorMessage { get; set; }
        public bool Success { get; set; }
        public string ToolName { get; set; }
        public string ToolId { get; set; }
        public object Data { get; set; }
    }

    /// <summary>
    /// MCP客户端配置
    /// </summary>
    public class McpClientConfig
    {
        public string ServerUrl { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
        public Dictionary<string, object> Settings { get; set; }
        public bool AutoReconnect { get; set; }
        public int TimeoutSeconds { get; set; }
        public int ConnectTimeoutMs { get; set; } = 30000;
        public bool EnableDebugLog { get; set; } = false;
    }

    /// <summary>
    /// MCP工具定义
    /// </summary>
    public class McpToolDefinition
    {
        public string Name { get; set; }
        public string Description { get; set; }
        public Dictionary<string, object> InputSchema { get; set; }
        public Dictionary<string, object> OutputSchema { get; set; }
        public McpToolType ToolType { get; set; }
    }

    /// <summary>
    /// MCP资源定义
    /// </summary>
    public class McpResourceDefinition
    {
        public string Uri { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
        public string MimeType { get; set; }
    }

    /// <summary>
    /// MCP工具类型
    /// </summary>
    public enum McpToolType
    {
        McpServer = 0,
        LocalFunction = 1,
        HttpApi = 2,
        Script = 3
    }

    /// <summary>
    /// 扩展MCP客户端管理器接口
    /// </summary>
    public interface IMcpClientManagerExtended : IMcpClientManager
    {
        /// <summary>
        /// 获取客户端状态列表
        /// </summary>
        List<McpClientStatus> GetClientStatuses();

        /// <summary>
        /// 获取或创建客户端
        /// </summary>
        Task<IMcpClientManager> GetOrCreateClientAsync(Guid serverId);

        /// <summary>
        /// 获取所有可用工具
        /// </summary>
        Task<List<McpToolInfo>> GetAllAvailableToolsAsync();

        /// <summary>
        /// 获取所有可用资源
        /// </summary>
        Task<List<McpResourceInfo>> GetAllAvailableResourcesAsync();
    }

    /// <summary>
    /// 扩展MCP客户端管理器实现
    /// </summary>
    public class McpClientManagerExtended : IMcpClientManagerExtended
    {
        public List<McpClientStatus> GetClientStatuses()
        {
            return new List<McpClientStatus>();
        }

        public async Task<IMcpClientManager> GetOrCreateClientAsync(Guid serverId)
        {
            return this;
        }

        public async Task<List<McpToolInfo>> GetAllAvailableToolsAsync()
        {
            return new List<McpToolInfo>();
        }

        public async Task<List<McpResourceInfo>> GetAllAvailableResourcesAsync()
        {
            return new List<McpResourceInfo>();
        }

        // IMcpClientManager 接口方法实现
        public Task<bool> TestConnectionAsync(string serverUrl)
        {
            // TODO: 实现MCP连接测试
            return Task.FromResult(true);
        }

        public Task<List<McpToolInfo>> GetToolsAsync(string serverUrl)
        {
            // TODO: 实现MCP工具获取
            return Task.FromResult(new List<McpToolInfo>());
        }

        public Task<object> ExecuteToolAsync(string serverUrl, string toolName, Dictionary<string, object> parameters)
        {
            // TODO: 实现MCP工具执行
            return Task.FromResult(new object());
        }

        public Task<List<McpResourceInfo>> GetResourcesAsync(string serverUrl)
        {
            // TODO: 实现MCP资源获取
            return Task.FromResult(new List<McpResourceInfo>());
        }
    }
}